Data gleaned from e-readers gives writers a new kind of feedback to take into consideration — or ignore. iStockphoto.com hide caption

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The Polar Express won the Caldecott Medal in 1986, and was turned into an animated movie with Tom Hanks in 2004. Houghton Mifflin Harcourt hide caption

itoggle caption Houghton Mifflin Harcourt
Vintage Books
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Oprah Winfrey's revamped book club uses her magazine and OWN cable network as platforms. Chris Pizzello/AP hide caption

itoggle caption Chris Pizzello/AP

Oprah Winfrey's OWN cable channel and her magazine have revived her book club, now known as Book Club 2.0. Charles Sykes/AP hide caption

itoggle caption Charles Sykes/AP

President Obama and daughters Sasha and Malia go shopping at a small bookstore, One More Page, in Arlington, Va. This is shaping up to be a better holiday season for independent booksellers than in past years. J. Scott Applewhite/AP hide caption

itoggle caption J. Scott Applewhite/AP
Eric Miller/AP
Scribner